A lot of work goes into producing these accuracy tests and the detailed results are only available to supporters.
At the same time, the interest in this is fairly niche so hopefully, this won't annoy too many people. For those of you wanting a summary of the accuracy then the reviews of the products DO always contain summary comments on the accuracy of GNSS, oHR and Elevation.
If you have any suggestions on how I can make this content public and still monetize my content I'd love to know.
Link: Summary Results
Last Updated on 24 January 2026 by the5krunnerMy favourite kit and nutrition
- Maurten — the race nutrition trusted by elite athletes. Gels and drink mix engineered to be easy on the stomach.
- Garmin 90-degree charging adapter — the small adapter that keeps your charging cable tidy at the stem. Essential for race day.
- Garmin charging puck — the fastest and most reliable way to top up your Garmin before a session.
- Ravemen FR300 — front light that mounts directly under your Garmin or Wahoo head unit. Keeps your bars clean and your beam pointed where it matters.
- Garmin Varia RTL515 — radar rear light that alerts you to vehicles approaching from behind. Pairs with your Edge or Garmin watch.
- Stryd — the footpod that brings running power to your Garmin. The single most useful running upgrade I have made.
- Favero Assioma Pro RS2 — the power meter pedals most serious cyclists end up choosing. Accurate, easy to move between bikes.
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tfk is the founder and author of the5krunner, an independent endurance sports technology publication. With 20 years of hands-on testing of GPS watches and wearables, and competing in triathlons at an international age-group level, tfk provides in-depth expert analysis of fitness technology for serious athletes and endurance sport competitors. ID
Buying you a coffee doesn’t count?
I saw that, it does help indeed! thank you 🙂
A tip on PayPal?
most of the methods here help , thank you: https://geni.us/TFKPartners and it includes paypal or various caffeine-funding schemes
best bet is to click on the amazon one just before you do your christmas shopping there 😉 .